counterpart, special representative for north korea policy glen davies. the spokesperson said their discussions will focus on maintaining peace and stability on the korean peninsula and keeping it free of nuclear weapons. chinese diplomatic sources say wu is expected to stay in washington from sunday through wednesday. >>> so what do members of the obama administration hope the chinese will do? we asked the director of the brookings institution center for northeast asian policy studies, richard bush. >> china is sometimes able to use its influence to get north korea to the negotiating table. it is less able to use influence to shape north korea's negotiating position, and that's the problem. north korea's goals here and its negotiating stance are dimetrically opposed to those of the united states, japan, and south korea. so the question that ambassador davies will probably be asking ambassador wu is, what evidence is there that north korea is interested in negotiating in a manner that's consistent with the six-party talks? what evidence is there that if i